(a) The atmospheric pollutants from the
of motor vehicles can be decreased by e.g.
- (b)
less fuel by having more
engines.
- (c) using low
fuels.
- (d) using
, in which nitrogen monoxide is
to
by loss of oxygen and carbon monoxide is
to carbon dioxide by gain of
.
- (e) adjusting the
between
transport (buses and trains) and
transport (cars).
- (f) having legal
to
which are enforced by the use of
.